59
Bryant Compressor Speed / RPM Fault

Bryant communicating thermostat shows code 59; indicates low compressor speed or RPM feedback error on variable-speed models.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Inverter control fault, Compressor internal fault, Loose compressor harness, Incorrect configuration or software issue

How to Fix / Troubleshooting

Safety first: Disconnect power at the outdoor disconnect and main breaker.

Steps:

  • 1. Inspect compressor harness: With power off, check the multi-pin connector from the inverter to the compressor. Ensure it is fully seated and free of corrosion or damage.
  • 2. Check for vibration damage: Look for rubbed-through wires or loose clamps around the compressor area. Secure any loose wiring.
  • 3. Power cycle and test: Restore power and command cooling. If code 59 returns immediately, the inverter or compressor is likely at fault.

Professional service: Speed control and inverter diagnostics are not homeowner tasks. Contact a Bryant-certified technician for further testing and possible replacement.

Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Variable-Speed Compressor
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements